Sponsored Content
Full Discussion: Difference between two rows
Top Forums Shell Programming and Scripting Difference between two rows Post 76885 by pixelbeat on Friday 1st of July 2005 09:37:28 AM
Old 07-01-2005
Converting absolute to relative and vice versa is a very common requirement.
There really should be a standard tool for it, hmm....
Anyway here's a python script I use:

Code:
#!/usr/bin/env python
                                                                                
import sys
                                                                                
prev=0
while 1:
    line = sys.stdin.readline()
    if line == '':
        break
    try:
        cur = float(line)
        print cur - prev
        prev = cur
    except:
        pass

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Deleting specific rows in large files having rows greater than 100000

Hi Guys, I need help in modifying a large text file containing more than 1-2 lakh rows of data using unix commands. I am quite new to the unix language the text file contains data in a pipe delimited format sdfsdfs sdfsdfsd START_ROW sdfsd|sdfsdfsd|sdfsdfasdf|sdfsadf|sdfasdf... (9 Replies)
Discussion started by: manish2009
9 Replies

2. Shell Programming and Scripting

Extract difference of two columns from different rows

Hello guys, Please help me to solve this problem. I have tried some awk commands but couldn't succeed. I have a tab delimited file where each record is separated by ------ and 4th column of each record is same. <INPUT FILE> ------ peon 53931587 53931821 ... (12 Replies)
Discussion started by: sam_2921
12 Replies

3. Shell Programming and Scripting

Split single rows to multiple rows ..

Hi pls help me out to short out this problem rm PAB113_011.out rm: PAB113_011.out: override protection 644 (yes/no)? n If i give y it remove the file. But i added the rm command as a part of ksh file and i tried to remove the file. Its not removing and the the file prompting as... (7 Replies)
Discussion started by: sri_aue
7 Replies

4. Shell Programming and Scripting

Difference between corresponding elements of successive rows

Hi, I have a file in the following format a1 b1 c1 d1 a2 b2 c2 d2 a3 b3 c3 d3 a4 b4 c4 d4 I need a script to find the difference between corresponding values of successive rows. So the output would have one less row than the input file and should look like: a2-a1 b2-b1 c2-c1 d2-d1... (4 Replies)
Discussion started by: sajal.bhatia
4 Replies

5. UNIX for Dummies Questions & Answers

merging rows into new file based on rows and first column

I have 2 files, file01= 7 columns, row unknown (but few) file02= 7 columns, row unknown (but many) now I want to create an output with the first field that is shared in both of them and then subtract the results from the rest of the fields and print there e.g. file 01 James|0|50|25|10|50|30... (1 Reply)
Discussion started by: A-V
1 Replies

6. Programming

what is the main difference between difference between using nonatomic lseek and O_APPEND

I think both write at the end of the file ...... but is there a sharp difference between those 2 instruction ..... thank you this is my 3rd question today forgive me :D (1 Reply)
Discussion started by: fwrlfo
1 Replies

7. UNIX for Dummies Questions & Answers

Finding difference in 1st field for rows of data

I have a file that has multiple lines, of grouped data, that typically all have the same values in the 1st field, however, I would like to search the 1st field for any differences and set a flag to use in an "if" statement to run some other routine. An example of the typical file is below,... (2 Replies)
Discussion started by: co21ss
2 Replies

8. Shell Programming and Scripting

Moving or copying first rows and last rows into another file

Hi I would like to move the first 1000 rows of my file into an output file and then move the last 1000 rows into another output file. Any help would be great Thanks (6 Replies)
Discussion started by: kylle345
6 Replies

9. Shell Programming and Scripting

Calculating Time difference Between two Rows in Linux

16:45:51 10051 77845 16:45:51 10051 77845 16:46:52 10051 77846 16:46:53 10051 77846 Match the last PID then subtract second line time with first line. Please help me with any command or script. working in media company on a project OS: RHEl7 tried command: awk 'function... (2 Replies)
Discussion started by: vivekn
2 Replies

10. Shell Programming and Scripting

awk to calculate difference of split and sum the difference

In the awk I am trying to subtract the difference $3-$2 of each matching $4 before the first _ (underscore) and print that value in $13. I think the awk will do that, but added comments. What I am not sure off is how to add a line or lines that will add sum each matching $13 value and put it in... (2 Replies)
Discussion started by: cmccabe
2 Replies
menu_format(3CURSES)					     Curses Library Functions					      menu_format(3CURSES)

NAME
menu_format, set_menu_format - set and get maximum numbers of rows and columns in menus SYNOPSIS
cc [ flag... ] file... -lmenu -lcurses [ library... ] #include <menu.h> int set_menu_format(MENU *menu, int rows, int cols); void menu_format(MENU *menu, int *rows, int *cols); DESCRIPTION
set_menu_format() sets the maximum number of rows and columns of items that may be displayed at one time on a menu. If the menu contains more items than can be displayed at once, the menu will be scrollable. menu_format() returns the maximum number of rows and columns that may be displayed at one time on menu. rows and cols are pointers to the variables used to return these values. RETURN VALUES
set_menu_format() returns one of the following: E_OK The routine returned successfully. E_SYSTEM_ERROR System error. E_BAD_ARGUMENT An incorrect argument was passed to the routine. E_POSTED The menu is already posted. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |MT-Level |Unsafe | +-----------------------------+-----------------------------+ SEE ALSO
curses(3CURSES), menus(3CURSES), attributes(5) NOTES
The header <menu.h> automatically includes the headers <eti.h> and <curses.h>. SunOS 5.10 31 Dec 1996 menu_format(3CURSES)
All times are GMT -4. The time now is 08:14 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy